Window channel

Thank you for your submission. Please take a look at our S380-15 and S385-15 channel balance. Both of these look very compatible to what you have. The difference between these balances is the different bottom balance shoe that is attached to it. The bottom shoe of the Series 380 has a 1" depth and for the Series 385 it has a 1-3/32" depth. You will need to measure the depth of your bottom shoe, like in the diagram below, to determine which balance would work best. Whichever one you decide on will use a 1420 option. 

Alternate view of 15-004